Must Be Ground Hog Day

Last year on Valentine's Day my husband had a cardiac ablation. He was doing well, off meds, feeling very good, and then in November he began the cycle again. He started with just a few atrial fibrillation episodes a week and then more, and then more. Two weeks ago, he consulted with his cardiologist and scheduled another ablation for this Thursday since he was not only having multiple episodes a day but they were becoming longer and longer. While this was not unexpected, it was nevertheless a blow. The surgeon is very experienced, same fellow as last year, but there are always worries--right?